S-2.1, r. 6 - Regulation respecting industrial and commercial establishments

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4.6.4. The fire alarm gongs shall be heard above the normal noise level and shall be located so that there is at least:
(a)  one 100 mm diameter gong for each 100 m2 of floor area;
(b)  one 150 mm diameter gong for each 550 m2 of floor area; or
(c)  one 250 mm diameter gong for each 1,200 m2 of floor area.
R.R.Q., 1981, c. S-2.1, r. 9, s. 4.6.4.